Section 10. North American ICAO Region

8-10-1. APPLICATION

Provide air traffic control services in the North American ICAO Region with the procedures and minima contained in this section.

8-10-2. VERTICAL SEPARATION

Provide vertical separation in accordance with:

a. Chapter 4, IFR, Section 5, Altitude Assignment and Verification; and

b. Facility directives depicting the transition between flight levels and metric altitudes.

8-10-3. LONGITUDINAL SEPARATION

In accordance with Chapter 8, Offshore/Oceanic Procedures, Section 3, Longitudinal Separation, apply the following:

a. Minima based on time:

1. 15 minutes between turbojet aircraft.

2. The prescribed minima in accordance with Paragraph 8-3-3, Mach Number Technique.

3. 20 minutes between other aircraft.

b. Minima based on distance using Automatic Dependent Surveillance – Contract (ADS­C) in the Anchorage Oceanic and Anchorage Continental CTAs only:

NOTE-
The minima described in this paragraph are not applicable within airspace in the Anchorage Arctic CTA.

1. Apply the minima as specified in TBL 8­10­1 between aircraft on the same track within airspace in the Anchorage Oceanic and Anchorage Continental CTAs designated for Required Navigation Performance (RNP), provided:

(a) Direct controller/pilot communication via voice or Controller Pilot Data Link Communications (CPDLC) is established, and

(b) The required ADS­C periodic reports are maintained and monitored by an automated flight data processor (for example, Ocean21).

TBL 8-10-1
ADS-C Criteria

2. Aircraft on reciprocal tracks in the Anchorage Oceanic and Anchorage Continental CTAs may be cleared to climb or descend to or through the altitude(s) occupied by another aircraft provided:

(a) (a) An ADS­C position report on at least one of the aircraft has been received beyond the passing point, and

(b) The aircraft have passed each other by the applicable separation minimum.

NOTE-
Ocean21 has been designed to check for the above criteria prior to allowing the minima to be provided.

3. When an ADS­C periodic or waypoint change event report is overdue by 3 minutes, the controller must take action to obtain an ADS­C report.

4. If no report is received within 6 minutes of the time the original report was due, the controller must take action to apply another form of separation.

8-10-4. LATERAL SEPARATION

In accordance with Chapter 8, Offshore/Oceanic Procedures, Section 4, Lateral Separation, apply the following:

a. 50 NM to RNP-10 approved aircraft within areas where RNP-10 separation and procedures are authorized,

b. 30 NM to RNP-4 approved aircraft operating within the Anchorage Oceanic CTA and Anchorage Continental CTA when direct controller/pilot communications, via voice or Controller Pilot Data Link Communications (CPDLC), and the required ADS-C contracts are maintained and monitored by an automated flight data processor (for example, Ocean21).

NOTE-
The minimum described in subparagraph b is not applicable within airspace in the Anchorage Arctic CTA.

c. 90 NM to aircraft not covered by subparagraphs a or b.